Introduction to the 3500/92-03-01-00 136188-01
The Bently Nevada 3500/92-03-01-00 136188-01 is a Relay Module for the 3500 Machinery Monitoring and Protection System. This module is a critical output device that converts alarm decisions from the monitoring modules (like the 3500/42, 3500/25, etc.) into physical, hardwired relay contacts. These contacts are used to initiate immediate actions, such as shutting down machinery (permissive/trip), activating annunciator panels, or triggering secondary alarms, to protect critical assets from damage. The "03-01-00" suffix typically indicates a specific relay configuration, often involving Form-C contacts and a particular trip logic.
Technical Parameters
The key technical specifications for the 3500/92-03-01-00 Relay Module are as follows:
| Parameter | Specification |
|---|---|
| Part Number | 3500/92-03-01-00 136188-01 |
| Description | Relay Module (Specific Configuration) |
| Number of Channels | 4 independent relay channels |
| Relay Contact Type | Form-C (SPDT - Single Pole Double Throw) |
| Contact Rating | 2 Amps continuous, 30 VDC/VAC max. |
| Trip Logic | Configurable (e.g., Latching or Non-Latching, with or without a voting delay). |
| Power Supply | Powered by the 3500 rack backplane. |
| Status Indicators | Per-channel LEDs for Bypass, OK, and Relay Active status. |
| Dimensions (H x W x D) | Approx. 70 mm x 213 mm x 200 mm (Occupies one slot in a standard 3500 rack frame) |
| Weight | Approx. 1.5 kg (3.3 lbs) |
| Mounting | Installs in any compatible slot (except the two left-most slots) of a 3500 rack frame. |
| Operating Temperature | 0°C to +65°C (32°F to 149°F) |
| Compatibility | Designed for use with all Bently Nevada 3500 series monitoring modules. |
Application Scenarios
The 3500/92 relay module is the final "action" component in a machinery protection loop. It is used wherever a automated physical response to an alarm condition is required.
Critical Machinery Shutdown (Trip):
Gas & Steam Turbines: Initiating an immediate shutdown upon a confirmed overspeed condition or excessively high vibration from a 3500/42 or 3500/32 monitor.
Compressors & Pumps: Tripping the machine based on high radial vibration, axial position thrust bearing wear, or other critical alarms to prevent catastrophic failure.
Alarm Annunciation:
Activating warning lights, horns, or control room annunciator panels upon a "Alert" level alarm to notify operators of a developing issue before it becomes critical.
Process Control & Permissives:
Providing a permissive signal that must be present (e.g., "lube oil pressure OK") to allow a machine to be started.
Initiating sequenced shutdowns of auxiliary equipment when a main unit trips.
Redundancy and Safety Systems:
While not as advanced as the TMR 3500/53, multiple 3500/92 modules can be used in voted configurations to improve system reliability and avoid single points of failure.
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